70=(2l)(w)

Solution for 70=(2l)(w) equation:

Simplifying
70 = (2l)(w)

Remove parenthesis around (2l)
70 = 2l(w)

Multiply l * w
70 = 2lw

Solving
70 = 2lw

Solving for variable 'l'.

Move all terms containing l to the left, all other terms to the right.

Add '-2lw' to each side of the equation.
70 + -2lw = 2lw + -2lw

Combine like terms: 2lw + -2lw = 0
70 + -2lw = 0

Add '-70' to each side of the equation.
70 + -70 + -2lw = 0 + -70

Combine like terms: 70 + -70 = 0
0 + -2lw = 0 + -70
-2lw = 0 + -70

Combine like terms: 0 + -70 = -70
-2lw = -70

Divide each side by '-2w'.
l = 35w-1

Simplifying
l = 35w-1